/Engine/Plugins/Runtime/RigVM/Source/RigVMDeveloper/Public/EdGraph/RigVMEdGraphSchema.h
DragDropAction class for drag and dropping an item from the My Blueprints tree (e.g., variable or function)
class FRigVMFunctionDragDropAction : public [FGraphSchemaActionDragDropAction](API\Editor\GraphEditor\FGraphSchemaActionDragDropAction)
bool
bAltDrag
bool
bControlDrag
URigVMBlueprint...
SourceRigBlueprint
URigVMEdGraph&...
SourceRigGraph